Thorsten Bohnenberger Oliver Jacobs Anthony Jameson Ilhan Aslan Decision-Theoretic Planning Meets User Requirements: Enhancements and Studies of an Intelligent Shopping Guide. 279-296 2005 conf/pervasive/2005 Pervasive http://dx.doi.org/10.1007/11428572_17 db/conf/pervasive/pervasive2005.html#BohnenbergerJJA05